discourse/lib/theme_store/tgz_importer.rb

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module ThemeStore; end
class ThemeStore::TgzImporter
attr_reader :url
def initialize(filename)
@temp_folder = "#{Pathname.new(Dir.tmpdir).realpath}/discourse_theme_#{SecureRandom.hex}"
@filename = filename
end
def import!
FileUtils.mkdir(@temp_folder)
Dir.chdir(@temp_folder) do
Discourse::Utils.execute_command("tar", "-xzvf", @filename, "--strip", "1")
end
end
def cleanup!
FileUtils.rm_rf(@temp_folder)
end
def version
""
end
def real_path(relative)
fullpath = "#{@temp_folder}/#{relative}"
return nil unless File.exist?(fullpath)
# careful to handle symlinks here, don't want to expose random data
fullpath = Pathname.new(fullpath).realpath.to_s
if fullpath && fullpath.start_with?(@temp_folder)
fullpath
else
nil
end
end
def [](value)
fullpath = real_path(value)
return nil unless fullpath
File.read(fullpath)
end
end